Killer Sudoku

Killer Sudoku is a variation of Sudoku that adds an extra layer of challenge. In addition to filling in the numbers to complete the Sudoku grid, you must also meet the conditions of the killer cells. Killer cells (Cages) are groups of cells that contain a certain sum. The cage refers to cells linked by dotted lines with a number printed in the top left-hand corner, this number must be the sum of cells that forms the cage. So that the cages which have one cell makes the puzzle easier

Killer Sudoku is a great way to challenge your brain and improve your problem-solving skills. It is also a lot of fun to play, and can be enjoyed by people of all ages.